Students read, write, expand, compare, order, locate, round, and convert finite decimals through the thousandths place, connecting them to fractions with denominators of 10, 100, or 1,000, mixed numbers, and measurement. They add, subtract, multiply, and divide decimals and whole numbers, including multiplication or division by 10, 100, and 1,000, while applying order of operations and using place-value reasoning, compatible numbers, and estimation to check results. Students solve multistep money, measurement, and other word problems involving positive terminating decimals, interpret remainders and units, and judge whether answers are reasonable.